Chapter 3 - What ethical issues are related to improving performance?

Transcription

Chapter 3 - What ethical issues are related to improving performance?
t h e h e a l t h o f y o u n g p e o p l e c h a p te r 2
c h a p te r
3
W h at e t h i c a l i s s u e s a r e r e l at e d t o i m p r o v i n g
performance?
use of drugs
justify the reasons drugs are considered to be unethical and carry a range
of risks for the athlete
argue issues related to drug testing such as:
Activity 1
– at what level of competition should drug testing be introduced?
– which drugs should be tested for?
– what are the pros and cons of drug testing?
– what should be the consequences of drug use?
The practice of using artificial substances or methods to enhance athletic performance is called doping
or using ergogenic aids. Doping is considered unethical by most international sports organisations and
especially the International Olympic Committee. The main reasons are:
• the health threat of performance-enhancing drugs
• the equality of opportunity of the athletes
• the exemplary effect of ‘clean’ (doping-free) sports in the public
• the illegal use in the general community.
As far back as ancient Greece and increasing
in the 1960s, athletes have often been willing
to take any preparation that would improve
their performance. They may also misuse drugs
to relax, cope with stress or boost their own
confidence.
There may be several reasons for athletes to
use performance-enhancing drugs. They may
want to:
• build mass and strength of muscles and/or
bones
• increase delivery of oxygen to exercising tissues
• mask pain
• stimulate the body
Fi g u r e 3 . 1
Drugs can be
injected or taken
orally
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• relax
• reduce weight
• hide use of other drugs.
Team physicians for amateur and elite level sports need to understand the drugs in sport policy issued
and monitored by the national government under the auspices of WADA (World Anti-Doping Agency).
World Anti-Doping Agency:
www.wada-ama.org
ÂÂ
The Australian Sports Anti-Doping Authority (ASADA):
www.asada.gov.au
ÂÂ
Fi g u r e 3 . 2
Types of banned
substances and
methods
Caffeine
Amphetamines
Cocaine
Anabolic steroids
Beta-2 Agonists
hCG
LH
hGH
IGF-1
Insulin
Alcohol
Beta-blockers
Cannabinoids
Stimulants
Build muscle/bone
Relaxants
PERFORMANCE
Mask drug use
Reduce weight
Diuretics
Epitastosterone
Plasma expanders
Secretion inhibitors
Diuretics
Increase oxygen
delivery
Mask pain
EPO
Blood doping
Artificial oxygen
carriers
Narcotics
ACTH
Cortisone
Local anesthetics
There are a number of factors that may contribute to an athlete misusing drugs. These factors can be
related to the drug itself, the person and/or surrounding environments, such as the following:
• the drug: effects of the drug, physical dependence and availability
• the person: dissatisfaction with performance or progress, easily influenced by others, self ego
• the environment: pressure to win from coach, parents, media, public, financial reward, unrealistic
qualifying standards or performance expectations.
Most of the drugs listed are banned outright in Olympic competitions. However, some of these
drugs, such as cortisone and local anaesthetics, are restricted in Olympic competition because they have
legitimate clinical uses.
– the dangers of performance enhancing drug use, eg physical effects, loss of
reputation, sponsorship and income
Athletes face enormous pressure to excel in competition. They also know that winning can reap them
more than just a gold medal. A star athlete can earn a lot of money and receive fame and attention, and
they only have a short time to do their best work. Athletes know that training is the best path to victory,
but they also understand that some drugs and other practices can boost their efforts and offer a shortcut,
even at the risk of their health and athletic careers.
Athletes can be lured into using performance-enhancing drugs because:
• winning can attract lucrative sponsorship deals and endorsements
• society places great emphasis on success in sport, which puts more pressure on an athlete to win
• some banned drugs can speed recovery from injury, which means athletes can be back training and
competing more quickly
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• some athletes believe competitors are using drugs and that to be competitive, need to take drugs too
• some athletes desire to win so much that they are willing to use any means, including cheating, to gain
success
• some coaches may push drug use to enhance an athlete’s chances of winning, which boosts the profile as a
successful coach.
For whatever reason an athlete wants to use drugs, performance-enhancing drugs carry serious risks for
them, including suspension or banishment from their sport, stripping of their records, diminishment of
their reputation and the sport, and life-threatening medical complications.
– for strength (human growth hormone, anabolic steroids)
Human growth hormone (HGH)
Human growth hormone (HGH) is naturally produced by the body in the pituitary gland. HGH
stimulates the body’s synthesis of the proteins that form bone and muscle tissue, decreases body fat and
increases testosterone levels.
HGH stimulates the growth of muscle, cartilage, and bone, and so increases muscle size. As there is a
correlation between muscle size and strength, competitors in events that require power and short bursts
of explosive strength would be most likely to benefit. It also
allows tired muscles to recover quicker, which enables the
athlete to train harder and more often.
The side effects of using human growth hormone include:
• overgrowth of hands, feet and face (acromegaly) because of
the increased muscle and bone development in these parts
• enlarged internal organs, especially heart, kidneys, tongue
and liver
• heart problems.
Fi g u r e 3 . 3
Effects of HGH
Anabolic steroids
A steroid is a chemical substance derived from cholesterol.
Anabolic steroids build muscle and bone mass primarily by
stimulating the muscle and bone cells to make new protein. These substances can be injected or taken as
pills.
Athletes use anabolic steroids because they increase muscle strength by encouraging new muscle
growth. Anabolic steroids are similar in structure to the male sex hormone, testosterone, so they enhance
male reproductive and secondary sex characteristics (testicle development, hair growth, thickening of the
vocal cords). They allow the athlete to train harder and longer at any given period, and are commonly
used in strengths and power events.
Anabolic steroids have a number of possible and wellknown side effects, including jaundice and liver damage
because these substances are normally broken down in the
liver; and mood swings, depression and aggression because
they act on various centres of the brain.
In males, the excessive concentrations of the steroids
interfere with normal sexual function and cause baldness,
infertility and breast development. In females, they cause male
characteristics to develop and interfere with normal female
functions. The drugs can:
• stimulate hair growth on the face and body
• suppress or interfere with menstrual cycle, possibly leading to
infertility
Fi g u r e 3 . 4
Effects of anabolic
steroids
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• thicken the vocal cords, which causes the voice to deepen, possibly permanently
• if pregnant, interfere with the developing foetus.
– for aerobic performance (EPO)
Erythropoietin (EPO) is a naturally occurring protein hormone that is secreted by the kidneys during
low-oxygen conditions. EPO stimulates the bone marrow stem cells to make red blood cells, which
increase the delivery of oxygen to the kidney.
Endurance athletes, use EPO to increase oxygen absorption, reduce fatigue and improve endurance by
increasing the rate of red cell production. It is also believed that EPO increases the metabolism and the
healing process of muscles because the extra red cells carry more oxygen and nutrients.
In someone who already has normal levels of red blood cells, the use of EPO can lead to increased
thickening (or viscosity) of the blood causing clotting, thrombosis, heart attack and stroke.
Blood doping
Blood doping refers to methods of increasing the oxygen-carrying capacity of blood in order to boost
aerobic performance. This is typically accomplished by withdrawing blood, isolating the oxygen-carrying
red blood cells in a solution, and then re-transfusing the cells prior to competition, thereby increasing
the body’s supply of red blood cells. Blood doping is used in endurance sports such as cycling, distance
running and cross-country skiing. Blood doping mimics the effects of EPO.
– to mask other drugs (diuretics, alcohol)
Masking agents are prohibited as they are products that have the potential to impair the excretion of
prohibited substances, to conceal their presence in urine or other samples used in doping control, or to
change haematological (blood) parameters.
Æ ÆF e a t u r e a r ti c le
Warne recently returned a positive sample
to the banned drug Moduretic, a diuretic
often used by sports drug cheats to mask
other prohibited substances including
anabolic steroids, which are often used by
sports men and women to promote rapid
tissue healing after injury.
Although he admits use of the banned
drug, Warne has maintained at all times it
was used only for weight loss purposes and
was given to him by his mother before a
television appearance to ensure he looked
his best on TV.
source: Shane w dell. Online cricket publication at www.
abcofcricket.com/Article_Library/news220203/news220203.
htm
Fi g u r e 3 . 5
Warne hits the headlines
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Diuretics
Diuretics are classified as masking agents and can be used to control weight or mask the use of other
drugs. They are used by athletes who participate in sports such as weightlifting, horse racing and rowing,
where there are weight restrictions. Diuretics increase the amount of urine produced, and have been
placed on the prohibited list for some time because of two reasons:
1. Diuretics facilitate weight loss via their ability to enhance rapid water loss via urine excretion.
2. Diuretics have the potential to rapidly dilute the urine by increasing renal flow.
When utilised as a ‘masking’ agent diuretics dilute the urine, which results in lower levels of the
banned substance being excreted from the body. This can therefore make it more difficult for the
laboratories conducting doping controls to detect. Possible side effects from using diuretics include
dehydration, dizziness, cramps, heart damage and kidney failure.
Alcohol
Many athletes perceive alcohol (ethanol) to be a stimulant drug, however, it is a depressant. It slows
down activity in the central nervous system, including the brain. Depressants affect concentration and
coordination, and slow the response time to unexpected situations. Alcohol can have the same masking
affect as a diuretic by diluting urine.
Alcohol is an ergolytic aid to sports performance. This means that it will detract from, not improve,
exercise performance. Alcohol intake impacts negatively on a variety of psychomotor skills essential for
successful performance, including reaction time, balance and hand–eye coordination. Studies have also
shown that drinking alcohol does not improve power, strength or endurance.
In Australia it is important to note that alcohol is banned in some sports during competition, these
include:
• aeronautic
• archery
• automobile
• boules
• karate
• modern pentathlon (disciplines involving shooting)
• motorcycling
• ninepin and tenpin bowling
• powerboating.
Although most athletes do not take alcohol immediately before exercise, consuming alcohol in binges
during the week or on weekends is likely to affect recovery from exercise and exercise performance
on subsequent days. The impact of alcohol binging has a variety of short- and long-term effects for
the athlete. Some of the short-term effects include dehydration, slower decision-making abilities, and
exacerbation of soft tissue injury.
Some of the indirect effects on athletes from binge drinking following exercise include:
• being distracted from carrying out appropriate recovery strategies to help the body refuel, rehydrate and
facilitate muscular repair
• relaxing attitudes towards certain foods athletes usually may not eat
• failing to follow-up appropriate injury rehabilitation and management
• being placed at an increased risk of violence or being involved in a brawl, leading to serious injury and/or
adverse publicity.
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Æ ÆF e a t u r e a r ti c le
Fi g u r e 3 . 6
Jones admitted to lying to investigators about drug use
Sprinter Jones pleads
guilty in drug case
US athlete Marion Jones has admitted to
lying to investigators about drug use
The 31 year old had previously denied
using performance-enhancing drugs ahead
of the 2000 Sydney Olympics, where she
won five medals—three of them gold.
In court Marion Jones admitted using
a steroid between September 2000 and
July 2001, and lying to a federal inquiry
in 2003. After leaving court a tearful Ms
Jones said she was retiring from athletics.
‘It is with a great amount of shame that I
stand before you and tell you that I have
betrayed your trust’, she said.
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‘I want to apologise for all of this’, she
said in a letter to her family. ‘I am sorry for
disappointing you in so many ways.’
The US court judge justified her prison
sentence because it sent a message to
athletes who have abused drugs and
overlooked the values of ‘hard work,
dedication, teamwork and sportsmanship’.
‘Athletes in society have an elevated status,
they entertain, they inspire, and perhaps
most importantly, they serve as role
models’, the judge said.
Ms Jones was told by her former
coach Trevor Graham that she was taking
flaxseed oil, a nutritional supplement, when
it was actually a steroid known as ‘the
clear’. ‘The clear’ is a banned drug linked
to the San Francisco-based laboratory
at the centre of a steroids scandal in
professional sports. Jones said she lied to
the authorities when she was questioned
about doping allegations in connection
with this laboratory. She said she panicked
when the authorities presented her with a
sample of ‘the clear’, which she recognised
as the substance Graham had given her.
In the letter to her family Jones said she
didn’t realise she’d used a performanceenhancing drug until she stopped training
with Graham at the end of 2002. The
prison sentence completes a stunning fall
for the woman who was once the most
celebrated female athlete in the world.
sources: http://wcco.com/national/Jones.sentenced.
prison.2.627761.html, http://news.bbc.co.uk/1/hi/
world/americas/7030170.stm, http://www.smh.com.au/
news/sport/sprint-queen-used-drugs-before-olympicsreport/2007/10/05/1191091319052.html.
i m p r o v i n g p e r f o r m a n c e c h a p te r 3
– benefits and limitations of drug testing
Effective drug testing programs are difficult and extremely costly to maintain. One reason is that new
performance-enhancing drugs are constantly being developed. These drugs are usually produced in secret
and are specifically designed to avoid detection by current testing methods.
Some performance-enhancing drugs are more difficult to detect than others. Elevated levels of EPO,
for instance, do not remain in the blood for long, making it particularly hard to test for. Both testosterone
and EPO are naturally present in the body, which means that if an athlete has an abnormally high level
of these chemicals due to certain physiological factors, the athlete may test positive even though no illegal
drug was used.
The Australian Sports Anti-Doping Authority (ASADA) is the primary anti-doping authority in
Australia and, as such, is responsible for testing athletes for banned substances. The methods that ASADA
officials use to collect samples vary according to whether it is a urine or a blood test. In each case, strict
protocols apply in relation to notifying athletes that they are required to provide a sample, how the sample
is to be collected and the paperwork that needs to be completed. Athletes under the age of 18 years must
be accompanied by a parent or guardian during testing, along with the ASADA representative.
Although there is limited statistical evidence on how widespread doping is, athletes and coaches stress
that most competitors do not take drugs. Nonetheless, drug testing is becoming an increasingly integral
part of sports competitions. As new performance-enhancing drugs are developed, new tests are developed
to detect these drugs, and the struggle to keep sports clean continues indefinitely.
use of technology
describe how technology has been used to improve performance
argue ethical issues related to technology use in sport such as:
– has technology gone too far?
ActivitIES
2, 3 and 4
– has access to technology created unfair competition?
Sport is undergoing a global technological revolution. Each year, records are being broken, equipment gets
more sophisticated, and facilities improve. These changes are impacting on all areas of sport, from shoes
to cycles and stadia. Is this making sport more exciting for participants and spectators? Or are talent and
determination becoming secondary to money and technology, devaluing honest competition?
Oscar Pistorius of South Africa was born without a fibula bone in his legs resulting in both legs being
amputated below the knee when he was 11 months old. Today, at age twenty, he is setting the track on
fire with his specially made prosthetics. After easily winning the Paralympics
World Cup 100 and 200-metre dashes, Oscar now dreams of running in the
Olympics.
sample
student
answer
Fi g u r e 3 . 7
– training innovation, eg lactate threshold testing,
biomechanical analysis
New training innovations develop every year, with what is regarded as the
latest innovation becoming outdated in a very short period of time. Most
innovations can all be linked to computer technology. Coaches research, or
in the case of elite athletes, have support staff to investigate the latest training
methods and vices to improve athletic performance in power, distance and
accuracy, and to prevent injury or aid in rehabilitation.
The Australian Institute of Sport (AIS) prides itself in athletic
achievements, which have been aided by the AIS Department of Applied
Research. However, much of the research is cutting-edge, and designed to
give Australian athletes the best chance at international success, and so is not
made available.
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Æ ÆF e a t u r e a r ti c le
Nadine Gelberg: Sport has a dynamic
other innovations would. So while the
relationship with society, and as societal
relationship with technology will change
interests change, so must sport. It is part
over time, there needs to be certain
of society as well as a reflection of society,
protections of the essential skills that
and its relationship with technology does
should not or will not change over time.
need to change. But as I would advocate,
sport needs to protect the essential
elements, the essential challenge. So in
tennis for example, it needs to protect
the ability to hit a top-spin shot, it needs
to limit the innovations that provide the
ball with more rotations per second, than
Golf is a test of hitting accuracy, driving
distance and putting precision. Those are
skills that will not change over time, and
need to be protected even if other sorts of
technologies do change, increased viewer
interest, increased participation.
source: ABC Radio National, The Sports Factor, 5 February 1999
(http://fulltext.ausport.gov.au/fulltext/1999/sportsf/sf990205.htm)
Some examples of innovative training aids to improve performance include:
• clothing, compression garments—scientifically designed materials to improve aero dynamics, buoyancy,
absorption and water resistance
• playing surfaces—synthetic grass pitches, ‘drop-in’ cricket pitch, synthetic athletic tracks
• testing procedures—wind tunnels, sprint gates, climatic chambers
• simulated competition environments—stationary cycling with computerised video simulation of
competition terrain or altitude tents
• team and individual performance analysis sheets for objective data
• equipment—heart rate monitors, GPS systems, treadmills, tacklesuits and lactate testing devices
• equipment modifications—graphite shafts for more flexibility in golf clubs, lighter carbon frames for
cycles, and streamlining surfboards
• computerised video analysis and photographic equipment for biomechanical analysis.
Coaches are always on the lookout for innovative training methods to complement new training aids.
Lactate thresholds testing is an innovative method used to measure lactate levels during training by sport
scientists, coaches and athletes to accurately determine heart rate training zones and recovery. Lactate is a
metabolic product that can be measured by taking a drop of blood at a fingertip the same way diabetics
monitor their blood sugar level. The blood lactate level increases with exercise intensity and shows clearly the
transition from aerobic to anaerobic activity. The ability of the muscles to reach a peak performance during
an athletic event requires that the energy systems providing energy be ‘fine tuned’ or ‘balanced’ properly so
that the athlete can generate the highest amount of energy per unit of time during a race. Proper training is
what accomplishes this fine tuning or optimal balance and it is lactate testing that lets the coach know if the
balance has been obtained or how each energy system must be trained in order to obtain the balance.
Biomechanical analysis is another innovative method used to improve an athlete’s performance. The
results of a biomechanical evaluation provide valuable information for trainers, coaches and athletes. For
example, walking, running, throwing, pitching, hitting, kicking, diving and golf swing mechanics can be
compared to normative data in order to pinpoint flaws in the motion; and so performance improvements
can then be based on scientific evidence.
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Biomechanical analysis is valuable in
the prevention of injuries. Data regarding
joint stresses incurred during sport-specific
movements, knowledge of joint mechanics
and the magnitudes and rates of joint loads,
provide sports medicine practitioners with
the information necessary to prescribe injury
prevention and rehabilitation programs.
Sport scientists and sports medicine
professionals can assist the athlete and coach in
designing a comprehensive program targeted at
injury prevention. All biomechanical evaluations
should be completed with two goals in mind:
improve performance and reduce the chance of
injury.
Athletic Edge: 3-D biomechanical motion
analysis:
www.youtube.com/
ÂÂ
watch?v=Gpw4knCYiDY
Hi-Tec CDT Superpower Golf Shoe: 4SYS
Technology
 Âwww.golfgearonline.com/hi-tec-cdt-golf-shoe/p/GP1022
Fi g u r e 3 . 8
A drop-in cricket
pitch at Sydney
Olympic Park
– equipment advances, eg swimsuits, golf ball
Where the sporting achievement can be gauged in absolute terms, such as in world records, tremendous
improvements have been made in those sports where equipment is critical. However, the use of advanced
materials in sports equipment presents some ethical questions and how behaviour is enhanced by allowing
the use of advanced materials. But where should the line be drawn or should there be no restrictions? To
maintain an ‘even playing field’, how much money is spent on these technological advancements and who
can afford them?
Activity 5
Swimsuit
There are numerous debates in equipment advances in technology; however, one of the most controversial to
is that of the Speedo LZR Pulse™ swimsuit. At the beginning of 2008, the suit was worn for 9 out of 9 world
records broken in the swimming pool by the end of March, even before the start of the 2008 Olympics.
Characteristics of the suit that improves performance include:
• constructed water repellent material reducing drag by 5% and increasing efficiency compared to older,
slower swimsuits
• tighter, corset-like midsection reported to reduce fatigue at the end of races and improve body shape
• seamless, consisting of special panels of the repellent material further reducing drag.
Golf ball
Another debate in sport and technology is one that surrounds golf balls. Though a golf ball is small, its
size and weight is regulated. Under standard rules, golf balls are to weigh no more than 45.93 grams and
have a diameter no less than 42.67 mm. Golf clubs and golf balls and are subject to standards set by the
Royal and Ancient Golf Club of St Andrews (the primary governing body worldwide) and the United
States Golf Association.
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Fi g u r e 3 . 9
Callaway golf balls
have hexagonal
dimples to improve
flight
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So what is the debate that surrounds golf balls? How
can any significant advantage be gained?
Within the rules established and maintained by the two
associations above, manufacturers have sought
to create superior golf balls by varying both the materials
and the patterns and combinations on the surface.
For example, why does a golf ball have dimples? Surely,
a smooth surface would reduce friction on a golf ball as it
travels through the air, reducing drag and helping it to go
further. In actual fact dimpled golf balls experience about
half the drag as smooth golf balls with no dimples. This
is because the main source of drag is not friction but the
movement of air around a golf ball. Analysts use computers
to model how the air flows around a ball in flight, and can
study how this flow is influenced by the size, pattern and
depth of a golf ball’s dimples. Dimples allow air to flow in a
turbulent pattern around the golf ball, and this pattern has
been found to be optimal for flight through the air.
As computer technologies and models are developed,
manufacturing companies can develop new golf balls with
new patterns, accompanied by new marketing campaigns
overlaid with scientific jargon. For instance, Callaway Golf replaced traditional dimples with a hexagonal
dimple pattern on their golf balls, which they claim further reduces drag for longer, more efficient ball
flight. In addition, they offer core constructions with two, three or four layers designed to minimise spin
and offer distance control. These tiny adjustments may offer advantages but at a price, not only exploiting
the lucrative sports dollar, but also creating an unfair platform for competition.
i m p r o v i n g p e r f o r m a n c e c h a p te r 3
Æ ÆF e a t u r e a r ti c le
• Water repellent coating limits water
absorption resulting in a long lasting
durable fabric
Water repellency:
• Unique water repellent coating bonded
to the LZR Pulse™ fabric via patented
plasma process
• Bonding process produces durable and
long lasting water repellent finish
• Limited water absorption creates an
incredibly lightweight feel in the water
• Quick drying fabric enhances performance
over multiple same day swims
Compression:
• Significantly greater fabric power and
compression than any other lightweight
suit on the market
Fi g u r e 3 . 1 0
Speedo, LZR Pulse(TM) swimsuit
• Compression provides core stability and
firmness during competition without
feeling restrictive or heavy
• Improves muscle efficiency through
reduction of excess muscle vibration
Behind the
technology: LZR
Pulse™ fabric
• A high density mircrofiber woven from
chlorine resistant elastane and ultra fine
nylon thread
• 15% more powerful compression than
any other lightweight suit on the market
• Significantly improved stretch and shape
retention
Seam and Fit:
• Seams vertically oriented to reduce drag
based on CFD analysis (Computational
Fluid Dynamics)
• Fit engineered from body scan data of
hundreds of elite swimmers resulting in
an optimum biomechanic fit
• Seams reinforced through innovative
sewing process
source: www.swimmingmatters.ca/competition-suits-lycra/
speedo-womens-fs-pro-recordbreaker-bodyskin.html
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Activities
Activity 1 (Page 291)
As a member of the Australian Sports Anti-Doping Authority (ASADA), you have been asked
to deliver a drug report to a professional sporting club, presenting the use of performanceenhancing drugs from a physiological and ethical perspective.
Activity 2 (Page 297)
Select a sport and research its technological advances over the past two decades.
Outline aspects that promote the performance of participating athletes.
Activity 3 (Page 297)
Has technology gone too far and created unfair competition?
Activity 4 (Page 297)
Discussion questions:
1.If drugs will always win, do we really have a choice about using them?
2.Will we ever see a Super-Human Olympics?
3.Is modern professional sport more about technology than talent?
4.Can athletes from the developing world ever hope to compete in modern sport?
Activity 5 (Page 299)
If the Fédération International de Natation Amateur (FINA) have approved the Speedo
swimsuit, then who is at a disadvantage?
Review
Questions
1. Investigate the processes used to administer
performance-enhancing drugs. Outline the dangers
associated with each process.
2. Discuss the role society has played in the current
situation with regards to drug use in sports today.
3. Describe the impact of drug testing on sport.
4. Evaluate the use of technology in training sessions that
are designed to improve skill.
5. Explain how technology can be used effectively to
improve performance.
Option
summary
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